28009352737761 has 32 divisors (see below), whose sum is σ = 39463966109568. Its totient is φ = 17647668702720.

The previous prime is 28009352737759. The next prime is 28009352737813. The reversal of 28009352737761 is 16773725390082.

It is not a de Polignac number, because 28009352737761 - 2¹ = 28009352737759 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28009352737695 and 28009352737704.

It is not an unprimeable number, because it can be changed into a prime (28009351737761) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15346836 + ... + 17074661.

It is an arithmetic number, because the mean of its divisors is an integer number (1233248940924).

Almost surely, 2^{28009352737761} is an apocalyptic number.

It is an amenable number.

28009352737761 is a deficient number, since it is larger than the sum of its proper divisors (11454613371807).

28009352737761 is a wasteful number, since it uses less digits than its factorization.

28009352737761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32421761.

The product of its (nonzero) digits is 26671680, while the sum is 60.

The spelling of 28009352737761 in words is "twenty-eight trillion, nine billion, three hundred fifty-two million, seven hundred thirty-seven thousand, seven hundred sixty-one".